DEV Community

Cover image for What is Marketplace Integration in eCommerce?
Natalia API2Cart
Natalia API2Cart

Posted on

What is Marketplace Integration in eCommerce?

Today, marketplace integration is a must-have for a significant number of software businesses. eCommerce solutions and applications providers have to connect their systems with various marketplaces and platforms to win over the competition.

Below, we want to reveal why your business must invest in a secure marketplace integration. We’ll also show you how marketplace integration works and dive deeper into the specifics of various marketplace APIs. Ultimately, we’ll teach you how to connect with marketplace APIs easily.

How Does Marketplace Integration Work?

Today, the eCommerce market is growing like never before. More and more people are choosing to open up their online stores. However, to stay competitive, online sellers need to use special tools to automate their businesses. This is where you come in. As an eCommerce software provider, you must ensure that your solution can automate online business processes and make e-retailers’ activity more efficient.

Marketplace integration involves developing an API connection between your system and various marketplaces like Walmart, Amazon, or Etsy. Once the connection is up and running, you’ll be able to retrieve, add, sync, delete, and work with marketplace data related to products, orders, shipments, inventory, or taxes.

The marketplace integration process comes with a few stages that we would like to present below:

Stage #1: This stage involves exploring the peculiarities of the marketplaces and studying the API Docs. Basically, you need to know that each marketplace has its own API structure and traits, so each integration is a unique process.

Stage #2: Developing the actual integration between your software and the API of the marketplace.

Stage #3: Once the connection has been established, it’s time to transfer data between parties. This involves managing marketplace products and orders and accessing data related to shipping, taxes, or baskets.

Stage #4: The last stage involves providing ongoing support and maintenance of the integration.

The Specifics of Various Marketplace APIs

An API acts as an intermediary between two applications, enabling them to communicate with each other and exchange data. This concept is today used across all industries and niches, including the eCommerce sphere. The API is the bond between your eCommerce software and your clients' shopping platforms and marketplaces.

Today, you need to be connected with as many platforms as possible because this allows you to service your clients across multiple places properly. Four of the essential marketplaces you should focus on connecting with as quickly as possible are Amazon, eBay, Etsy, and Walmart. They have tens of millions of sellers, so you can extensively grow your business by connecting with them.

Let’s take a closer look at the specifics of these four marketplace APIs.

Amazon API. Amazon is undoubtedly the largest marketplace in the globe. It offers a powerful API that allows you to review and extract data easily. However, the API of Amazon is quite old. Changing data on Amazon listings, payments, and orders is quite a tedious task that requires experienced developers who know how to perform an Amazon API integration properly.

eBay API. eBay is a huge marketplace that powers over 800,000 stores and services 170 million users on a monthly basis. eBay API offers you unrestricted access to a plethora of unique features and capabilities, with the condition to overcome the annoying bugs and errors that keep showing up. Performing an eBay API marketplace integration should be left to professionals who can create workarounds to minimize errors.

Walmart API: People living in North America are well aware that Walmart is the largest chain of physical stores globally. Also, Walmart is one of the popular online marketplaces. It uses a smooth REST infrastructure for its API that makes it easy to work with data.

Etsy API: This large marketplace that is expanding massively in 2021 comes with a user-friendly API that combines the reliability of the RESTful interface with the utility of the lightweight JSON format. As a developer, you can easily use the OAuth method to work with data.

How to Connect with Marketplace APIs Easily?

In 2021, growing and expanding your software business is a must-have for you, especially if you want to ride the wave of eCommerce growth and capitalize on the huge number of online stores that are being opened during the pandemic. For that, you want to be able to connect your business with as many marketplaces as possible.

To easily connect your software or app with various marketplace APIs, you should avoid performing a manual integration and instead focus on a service that can give you an automatic integration. API2Cart is a solution that allows you to get connected to 40+ shopping platforms and popular marketplaces within a few days and use over 100 API methods to manage store data.

With API2Cart, you can integrate once with multiple platforms and dramatically minimize your TCO. Currently, API2Cart supports the integration with Amazon, eBay, Walmart, and Etsy marketplaces. Soon enough, we’re planning to add the connection with AliExpress and Flipkart, along with numerous other platforms.


Investing in a stable marketplace integration is a surefire way to achieve success in 2021 and grow the reach of your business. Thanks to API2Cart, you can now expand into hundreds of new markets and reach millions of potential customers connecting with over 40+ platforms and marketplaces we’re already supporting.

Contact us to learn more and discover all the possibilities of using the service for your company.

Discussion (0)